Here is a great way to Retrofit your home Lighting with Automation, Use your existing home WiFi network to allow wireless control of your lighting anytime from any where without the hub. This can easily replace the conventional switches directly. You can also control your lighting on your mobile phone via 'Smart Life' app, together with hands-free voice control, countdown timer and easy installations.
See https://www.selfbuildnewhomes.com/lighting for more ideas!